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- modbus_rtu_get_rts(3)
- =====================
- NAME
- ----
- modbus_rtu_get_rts - get the current RTS mode in RTU
- SYNOPSIS
- --------
- *int modbus_rtu_get_rts(modbus_t *'ctx');*
- DESCRIPTION
- -----------
- The *modbus_rtu_get_rts()* function shall get the current Request To Send mode
- of the libmodbus context _ctx_. The possible returned values are:
- * MODBUS_RTU_RTS_NONE
- * MODBUS_RTU_RTS_UP
- * MODBUS_RTU_RTS_DOWN
- This function can only be used with a context using a RTU backend.
- RETURN VALUE
- ------------
- The function shall return the current RTS mode if successful. Otherwise it shall
- return -1 and set errno.
- ERRORS
- ------
- *EINVAL*::
- The libmodbus backend is not RTU.
- SEE ALSO
- --------
- linkmb:modbus_rtu_set_rts[3]
- AUTHORS
- -------
- The libmodbus documentation was written by Stéphane Raimbault
- <stephane.raimbault@gmail.com>
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